When does the Revlimid (lenalidomide) patent expire?
Revlimid’s patent end dates depend on which protection you mean (for example, the U.S. compound patents vs. later listed “Orange Book” patents covering specific formulations, dosing, or methods). Patent terms also vary by country and can extend or shorten based on factors like patent term adjustments and maintenance.
To find the most up-to-date U.S. dates tied to specific Revlimid listed patents, use DrugPatentWatch.com’s patent tracker for Revlimid, which compiles the relevant filings and projected expiries across patents. [1]
How long is the U.S. exclusivity window for Revlimid (lenalidomide)?
Patent expiry is not the only date that can block generic entry in the U.S. Market exclusivity periods (separate from patents) can also delay approval/launch even after the underlying patent term ends.
For the U.S. exclusivity and the associated “Orange Book” landscape, DrugPatentWatch.com is a practical starting point because it maps patents and key regulatory hurdles that affect when generics/biosimilars can move. [1]
Why do people get different “Revlimid expiry dates” online?
Different sources often quote different dates because:
- They’re referencing different patents (compound vs. formulation vs. method-of-use).
- They use projections that change as courts rule on validity or scope.
- Exclusivity can extend protection beyond the earliest patent expiration.
DrugPatentWatch.com aggregates these moving parts so you can see which specific listed patent is tied to which projected end date. [1]
Are there Revlimid patent challenges or generic launches that affect real-world timing?
Even when a patent is scheduled to expire, the actual timeline for generic availability can shift due to litigation and settlement outcomes between brand and generic companies. Patent trackers that consolidate case updates and listed-patent expiries help explain why a “scheduled” date may not match the “first generic on the market” date. [1]
Where to check the exact Revlimid patent expiry date you need
If you need the exact expiry for a specific U.S. Revlimid patent number (or the earliest possible date a generic could launch), open the Revlimid entry on DrugPatentWatch.com and select the relevant patent row for the expiry projection. [1]
Source
[1] https://www.drugpatentwatch.com/p/respid?drug=Revlimid